Answer:
1. 5/4
2. 7
Step-by-step explanation:
1) Lets call the width as w
Therefore length would be:
w+4
To find the perimeter you use the formula:
2 (l+w)
Now substitute our values into this formula:
2 (w+4+w)
2( 2w+4)
4w+8
Now make this equal to 13:
4w +8 = 13
4w = 5
w = 5/4
2. In this question we will call length l
Therefore width would be:
l-5
Now we will do the steps we did above:
2 (l+l-5)
2 (2l-5)
4l -10
4l - 10 = 18
4l = 28
l = 7
X = 5
You first have to use Pythagorean Theorem to find the side lengths of the triangle with the hypotenuse of 10. The side lengths are 5sqrt2.
Now do Pythagorean theorem again to find the side length is 5
Answer:
81
Step-by-step explanation:
x^2 - 18x + _______
to find the blank
take (b/2) ^2
where b is the coefficient on the x term
(-18/2) ^2
9^2
81
add 81
.25x-log=y is inversely proportional to this
